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From The Big Bang to Earth: An Epic Journey from the Heart of the Universe

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Uploaded by on Mar 8, 2011

A Journey from the Heart of the Universe to the Heart of the Solar System and our HOME Planet.

The Big Bang was the event which led to the formation of the universe, according to the prevailing cosmological theory of the universe's early development (known as the Big Bang theory or Big Bang model). According to the Big Bang model, the universe, originally in an extremely hot and dense state that expanded rapidly, has since cooled by expanding to the present diluted state, and continues to expand today. Based on the best available measurements as of 2010, the original state of the universe existed around 13.7 billion years ago, which is often referred to as the time when the Big Bang occurred. The theory is the most comprehensive and accurate explanation supported by scientific evidence and observations.
Georges Lemaître proposed what became known as the Big Bang theory of the origin of the universe, although he called it his "hypothesis of the primeval atom". The framework for the model relies on Albert Einstein's general relativity and on simplifying assumptions (such as homogeneity and isotropy of space). The governing equations had been formulated by Alexander Friedmann. After Edwin Hubble discovered in 1929 that the distances to far away galaxies were generally proportional to their redshifts, as suggested by Lemaître in 1927, this observation was taken to indicate that all very distant galaxies and clusters have an apparent velocity directly away from our vantage point: the farther away, the higher the apparent velocity.
If the distance between galaxy clusters is increasing today, everything must have been closer together in the past. This idea has been considered in detail back in time to extreme densities and temperatures.

Music: Handel - Symphony of the Royal Fireworks

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Uploader Comments (KurdstanPlanetarium)

  • I'm the owners son and this was a tiny dot in space 4.7billion years ago created our universe and in a couple years the big crunch will end it then big bang again to begin it again thanks for the vid dad •]

  • @iplayroblox88 Oh You welcome Son, nice to have a beautiful scientific comment from you so young, thats right only it was 13.7 Billion years ago that our Universe was created out of a big bang and one day it may end in a big crunch and the cycle continues big band followed by big crunch on and on forever...

  • What A mega blast. I would not have wanted to be around ;)

  • @elvisinpersonator The funny thing about the Big Bang despite beem a Mega Blast as you put it forward, and always shown as Mega Blast too, Scientists say it was a very silent one, since Sound can not propagate in empty space (which was just created)..what a shame

  • Keep the cool videos coming!

  • @TeenTwinkTween Sure friend...thanx

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All Comments (11)

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  • theres a retarted face at 1:48

    

  • awesome

  • 5*****

    Nice video

  • @fischer3x3 Thanx friend

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